The latest NOAA forecast models foresee smoke persisting in the skies over Philly through the day Wednesday and likely into ...

The state monitors smoke levels and weather conditions to determine when impacts to air quality are anticipated. Advisories ...

The sky may appear hazy across the Philadelphia area on Wednesday, and health officials are asking some residents to limit their time outside.

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A massive dust cloud from the Sahara Desert has swept through the Atlantic Ocean and the Caribbean and is now starting to ...

Fluorescence lidar technology enables a better determination of the origin of particles in the atmosphere. The method can ...

Scientists in two hail-dimpled vehicles with special mesh protecting the windshields are driving straight into the heart of ...

Smoke from Canadian wildfires reached New York City and other parts of the Northeast on Wednesday, posing risks to residents’ ...

Even if you live far from the boreal forests in Canada and Siberia, you've likely noticed an increase in smoke from their ...

Canadian forest fires and the smoke that comes with them has become an annual occurrence but the second phenomenon in the sky this week is highly unusual. Sand that was stirred up over the Sahara ...

Both Wednesday and Thursday in the Philadelphia region will be very warm and humid, with highs in the upper 80s and low 90s.